Senate Minority Leader Charles SchumerChuck SchumerPelosi orders Capitol flags at half-staff to honor Ginsburg Ginsburg in statement before her death said she wished not to be replaced until next president is sworn in Democrats call for NRA Foundation to be prohibited from receiving donations from federal employees MORE (D-N.Y.) is calling for an "impartial and independent" investigation into Russia's interference in the presidential election following President Trump's firing of FBI Director James Comey.

Schumer outlined Democratic demands in a speech on the Senate floor Wednesday, voicing concern that the "subject" of the FBI's investigation into potential ties between the Trump campaign and Russia may try to "quash" the probe.

"The only thing we are seeking is that the investigations are carried out in an impartial and independent way, that we get all the facts," Schumer said. "All we are seeking is some assurance that the subject of this investigation is not able to influence it or, God forbid, quash it."

Schumer said Democrats agreed to three priorities in a closed-door caucus meeting Wednesday: that Rod Rosenstein, the deputy attorney general, should not be the one to appoint a special prosecutor for an investigation into Russia's meddling in the election; that Comey needs to meet with the Senate; and that Rosenstein and Attorney General Jeff SessionsJefferson (Jeff) Beauregard SessionsTrump's policies on refugees are as simple as ABCs Ocasio-Cortez, Velázquez call for convention to decide Puerto Rico status White House officials voted by show of hands on 2018 family separations: report MORE should meet separately with senators. 
Schumer — crediting Sen. Dianne FeinsteinDianne Emiel FeinsteinMcConnell says Trump nominee to replace Ginsburg will get Senate vote Top Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence Intensifying natural disasters do little to move needle on climate efforts MORE (Calif.), the top Democrat on the Judiciary Committee — said if a special prosecutor for the FBI's investigation is named, the "highest-serving career civil servant" should pick the individual. 
"Serious doubts have been cast on Mr. Rosenstein's impartiality," he said. "Mr. Rostenstein signed his name to a highly political memo arguing for Director Comey's dismissal." 
Senate GOP leadership has shown no sign that it has reversed course and would support a special counsel for the investigation.
Schumer repeated the demand on Wednesday afternoon, adding that "they should do it soon because the questions are just swirling about." 
Democrats are signaling that they are willing to slow down the Senate in a bid to get leverage in the fight over Comey's firing. They blocked a routine request for committees to meet earlier Wednesday, sparking GOP frustration. 
Sens. Mark WarnerMark Robert WarnerIntelligence chief says Congress will get some in-person election security briefings Overnight Defense: Trump hosts Israel, UAE, Bahrain for historic signing l Air Force reveals it secretly built and flew new fighter jet l Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' House approves bill to secure internet-connected federal devices against cyber threats MORE (D-Va.) and Richard BurrRichard Mauze BurrRep. Mark Walker says he's been contacted about Liberty University vacancy Overnight Defense: Trump rejects major cut to military health care | Senate report says Trump campaign's Russia contacts posed 'grave' threat Senate report describes closer ties between 2016 Trump campaign, Russia MORE (R-N.C.) have invited Comey to testify next week as part of a closed-door hearing before the Senate Intelligence Committee. Sen. Ron WydenRonald (Ron) Lee WydenGOP senator blocks Schumer resolution aimed at Biden probe as tensions run high Republican Senators raise concerns over Oracle-TikTok deal Hillicon Valley: TikTok, Oracle seek Trump's approval as clock winds down | Hackers arrested for allegedly defacing U.S. websites after death of Iranian general | 400K people register to vote on Snapchat MORE (D-Ore.), another member of the Intelligence panel, has also publicly called on Comey to testify.
Schumer praised the move, arguing it was the "right thing" to do. 
"We ought to hear from Mr. Comey. At this moment [there is] a profound doubt about the reasons and timing of FBI Director Comey's firing by the president, about the status and progress of the very serious investigation into the Trump campaign and Russia by his agency. We require answers," Schumer said.